Help please need a motor for my Grain Mill don't know what to get?!?!?

So I have a Shmidling Malt Mill (sp?) I originally bought an electric motor on Ebay unknown horsepower but I assume pretty low like 1/4 horsepower and made a belt and pulley system. Well the motor could not turn the mill with grain in it. So I got a 1/2" drill as a temporary fix. Welllllll I have already burned thru 2 drills and I am on my 3rd. Unlike other mills the Shmidling rollers are like 10" long or whatever they are which I realize now takes a lot of power to turn when loaded with grain. So before I burn thru my 3rd drill I need to get an electric motor to run this mill. There are a few electric motor repair places in town and they also sell used motors but I don't know what size I should get????? So what HP motor should I get???

It all depends on the size of the pulleys. A small 1/4 horse would do it but it would do it rather slow but I think slow is better with the grain. Call or email the manufacturer and ask them what you need for a motor and pulley size.

It works great when I can get something that will turn it. Like I said the rollers are long so they churn a lot of grain at once requiring a lot of muscle moreso than the smaller roller ones like at my LHBS. But I am doing 10 gallon all grain batches so hand cranking the grain at the store is kinda out of the question.

I have like an 1 1/2" pulley for the motor and a 12" pulley on the mill.